CN105021256A - Liquid level alarm measuring device and method - Google Patents
Liquid level alarm measuring device and method Download PDFInfo
- Publication number
- CN105021256A CN105021256A CN201510407284.0A CN201510407284A CN105021256A CN 105021256 A CN105021256 A CN 105021256A CN 201510407284 A CN201510407284 A CN 201510407284A CN 105021256 A CN105021256 A CN 105021256A
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- transducer
- tank
- liquid level
- measurement
- processor
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- 239000007788 liquid Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000005259 measurement Methods 0.000 claims abstract description 27
- 239000012530 fluid Substances 0.000 claims description 11
- 238000010205 computational analysis Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000003745 diagnosis Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention discloses a liquid level alarm measuring device and a liquid level alarm measuring method, wherein the measuring device comprises a tank top transducer (1), a tank bottom transducer (3), a measuring transducer (2) and a liquid level processor (4), the tank top transducer (1) is installed on the tank top of a storage tank (5), the tank bottom transducer (3) is installed on the tank bottom of the storage tank (5), the measuring transducer (2) is installed on the tank wall of the storage tank (5), and the tank top transducer (1), the tank bottom transducer (3) and the measuring transducer (2) are connected with the liquid level processor (4) in a common way, so that the liquid level alarm measuring device is integrally formed. The measuring method and the device of the invention ensure the real-time performance and the accuracy of the liquid level measurement by utilizing the sound wave pulse measuring principle, avoid the influence of the environmental factors on the liquid level measurement, and correctly judge to be beneficial to production.
Description
Technical field
The present invention relates to measurement mechanism and the method for liquid level warning.
Background technology
Supersonic liquid level is reported to the police and is mainly utilized the ultrasonic pulse of transmitting, by calculating, comparing the change of detection signal, recording the change of liquid level.
Existing outer subsides ultrasound wave all can not avoid the impact of environmental factor.Environmental factor all can have impact to transducer frequency and sensitivity, causes instrument to judge by accident.Reason is the problem of measuring method.When conventional ultrasonic wave pulse measuring method is instrument Installation and Debugging, with storer, current waveform recording is got off, then CPU process compares.But two kinds of situations can affect transducer signal change, one is that the height condition of measured medium liquid level changes, and two is that environmental factor has become, and is the comparison between a variable and a fixed value, can not ensures measuring accuracy.
Summary of the invention
The object of the invention is: the measurement mechanism and the method that provide a kind of liquid level warning, this measuring method and device utilize sound wave pulse measuring principle, the impact when liquid level warning not by environmental factor, ensure the accuracy of level gauging.
The technical solution that the present invention adopts is: this measurement mechanism comprises transducer at the bottom of tank deck transducer, tank, measurement transducer and liquid level processor, tank deck is installed tank deck transducer, transducer at the bottom of tank is installed at the bottom of tank, tank skin installs and measures transducer, transducer, measurement transducer connecting fluid bit processor altogether at the bottom of tank deck transducer, tank, the overall measurement mechanism forming liquid level warning.
Wherein, the measuring method based on measurement mechanism is: liquid level processor
Send two identical pulse signals simultaneously, drive transducer at the bottom of tank deck transducer, tank to send same pulse signal respectively by exciting circuit; Pulse signal, by the transmission of tank skin, accepts two return signals by measurement transducer, and return signal, by amplifying shaping, enters liquid level processor and carries out computational analysis; If obtain identical level parameter relatively, then illustrate that fluid level condition display is stable; If obtain not identical level parameter relatively, then illustrate that fluid level condition display is unstable, enter the concurrent signal that is out of order of fault diagnosis.
Advantage of the present invention is: utilize transducer at the bottom of tank deck transducer and tank, aneroid under the same environmental factor of Real-time Obtaining or have the signal of liquid, namely immobile liquid place value signal, the fluid level condition signal under same environmental factor is obtained again with measurement transducer, computational analysis is carried out by liquid level processor, consider the impact of liquid level change on signal, also the impact of environment factor on signal is namely added, compare between Two Variables, solve fluid level condition of the same race under circumstances on the impact of signal, make correct judgement, ensure real-time and the accuracy of level gauging.
Accompanying drawing explanation
Fig. 1 is measurement mechanism scheme of installation of the present invention.
Fig. 2 is the theory diagram of Fig. 1.
In figure: 1 tank deck transducer; 2 measurement transducers; Transducer at the bottom of 3 tanks, 4 liquid level processors, 5 storage tanks.
Embodiment
As shown in Figure 1, this measurement mechanism comprises transducer 3 at the bottom of tank deck transducer 1, tank, measurement transducer 2 and liquid level processor 4, the tank deck of storage tank 5 is installed tank deck transducer 1, transducer 3 at the bottom of tank is installed at the bottom of the tank of storage tank 5, the tank skin of storage tank 5 installs and measures transducer 2, transducer 3, measurement transducer 2 connecting fluid bit processor 4 altogether at the bottom of tank deck transducer 1, tank, the overall measurement mechanism forming liquid level warning.
Wherein, the measuring method based on measurement mechanism is: liquid level processor 4 sends two identical pulse signals simultaneously, drives transducer 3 at the bottom of tank deck transducer 1, tank to send same pulse signal respectively by exciting circuit; Pulse signal, by the transmission of tank skin, accepts two return signals by measurement transducer 2, and return signal, by amplifying shaping, enters liquid level processor 4 and carries out computational analysis; If obtain identical level parameter relatively, then illustrate that fluid level condition display is stable; If obtain not identical level parameter relatively, then illustrate that fluid level condition display is unstable, enter the concurrent signal that is out of order of fault diagnosis.
Claims (2)
1. the measurement mechanism of liquid level warning, it is characterized in that: this measurement mechanism comprises transducer (3) at the bottom of tank deck transducer (1), tank, measurement transducer (2) and liquid level processor (4), the tank deck of storage tank (5) is installed tank deck transducer (1), transducer at the bottom of tank (3) is installed at the bottom of the tank of storage tank (5), the tank skin of storage tank (5) installs and measures transducer (2), transducer (3), measurement transducer (2) connecting fluid bit processor (4) altogether at the bottom of tank deck transducer (1), tank, the overall measurement mechanism forming liquid level warning.
2. the measuring method of liquid level warning, it is characterized in that: the measuring method based on the measurement mechanism of claim 1 comprises the following steps: liquid level processor (4) sends two identical pulse signals simultaneously, drive transducer (3) at the bottom of tank deck transducer (1), tank to send same pulse signal respectively by exciting circuit; Pulse signal, by the transmission of tank skin, accepts two return signals by measurement transducer (2), and return signal, by amplifying shaping, enters liquid level processor (4) and carries out computational analysis; Obtain identical level parameter more afterwards, then illustrate that fluid level condition display is stable; Obtain not identical level parameter more afterwards, then illustrate that fluid level condition display is unstable, enter the concurrent signal that is out of order of fault diagnosis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510407284.0A CN105021256A (en) | 2015-07-13 | 2015-07-13 | Liquid level alarm measuring device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510407284.0A CN105021256A (en) | 2015-07-13 | 2015-07-13 | Liquid level alarm measuring device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105021256A true CN105021256A (en) | 2015-11-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510407284.0A Pending CN105021256A (en) | 2015-07-13 | 2015-07-13 | Liquid level alarm measuring device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105021256A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017612A (en) * | 2016-03-03 | 2016-10-12 | 江苏迅创科技有限公司 | Liquid level alarm measuring method not influenced by environment factor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010010171A1 (en) * | 2000-01-27 | 2001-08-02 | Smiths Group Plc | Quantity Gauging |
| CN101680797A (en) * | 2007-04-28 | 2010-03-24 | 普尔萨程序测量有限公司 | Distance measurement apparatus and related methods |
| CN101769777A (en) * | 2008-12-30 | 2010-07-07 | 广州昉时工业自动控制系统有限公司 | Ultrasonic liquid level meter owning gas sound speed real-time correction |
| CN102322920A (en) * | 2011-08-24 | 2012-01-18 | 四川大学 | Method for measuring existence of powdery materials in specific material position of container and implementation material level switch thereof |
-
2015
- 2015-07-13 CN CN201510407284.0A patent/CN105021256A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010010171A1 (en) * | 2000-01-27 | 2001-08-02 | Smiths Group Plc | Quantity Gauging |
| CN101680797A (en) * | 2007-04-28 | 2010-03-24 | 普尔萨程序测量有限公司 | Distance measurement apparatus and related methods |
| CN101769777A (en) * | 2008-12-30 | 2010-07-07 | 广州昉时工业自动控制系统有限公司 | Ultrasonic liquid level meter owning gas sound speed real-time correction |
| CN102322920A (en) * | 2011-08-24 | 2012-01-18 | 四川大学 | Method for measuring existence of powdery materials in specific material position of container and implementation material level switch thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017612A (en) * | 2016-03-03 | 2016-10-12 | 江苏迅创科技有限公司 | Liquid level alarm measuring method not influenced by environment factor |
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Application publication date: 20151104 |